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Finding the Fourth Proportional to 64,847.95, 89,488.35 and 36,168.48

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Solution

The fourth proportional to 64,847.95, 89,488.35 and 36,168.48 is: 49,911.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,847.95 : 89,488.35 = 36,168.48 : x
  2. Step 2: Convert to fraction form
    64,847.95/89,488.35 = 36,168.48/x
  3. Step 3: Cross multiply
    64,847.95x = 89,488.35 × 36,168.48
  4. Step 4: Simplify right side
    64,847.95x = 3,236,657,597.21
  5. Step 5: Solve for x
    x = 3,236,657,597.21/64,847.95
  6. Step 6: Final answer
    x = 49,911.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.